CN105163011A - Image pick-up module and electronic device - Google Patents
Image pick-up module and electronic device Download PDFInfo
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- CN105163011A CN105163011A CN201510520605.8A CN201510520605A CN105163011A CN 105163011 A CN105163011 A CN 105163011A CN 201510520605 A CN201510520605 A CN 201510520605A CN 105163011 A CN105163011 A CN 105163011A
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Abstract
The invention provides an image pick-up module. The image pick-up module comprises a housing, a lens, a spectroscope, a total reflection mirror, an image sensor and a focusing sensor; the housing comprises a receiving space; the lens is located at one end of the receiving space and seals the receiving space; the spectroscope is arranged coaxially and oppositely to the lens, and used for splitting light into first light and second light; the total reflection mirror is located on one side of the spectroscope and used for reflecting the second light; the image sensor is used for receiving the first light and obtaining image information in the first light; the focusing sensor is used for receiving the second light and obtaining focusing information in the second light. According to the image pick-up module, the light incident via the lens is divided into the first light and the second light by the spectroscope, the total reflection mirror is arranged to reflect the second light, and the image sensor and the focusing sensor are used for receiving the first light and the second light. Due to the specialization effects of the image sensor and the focusing sensor, image processing and focusing are realized simultaneously. In addition, the invention also provides an electronic device with the image pick-up module.
Description
Technical field
The present invention relates to communications electronics field, particularly relate to a kind of camera module and electronic installation.
Background technology
Along with the develop rapidly of electronic installation, increasing manufacturer terminal is in order to increase the attraction of intelligent terminal, and for mobile phone, manufacturer starts to drop into the experience of taking pictures that energy goes to promote mobile phone entirety, and speed of the focusing shortcoming that to be consumer slowly face.
In order to solve the slow-footed problem of above-mentioned focusing, the each manufacturer terminal in current market mainly adopts phase place focusing (PDAF) scheme, the program is mainly by transforming the filter above Sensor section pixel, by detect these by the phase difference transforming pixel-by-pixel basis light judge focusing from, thus realize focusing.But the transducer of existing support phase place focusing there will be following two problems;
First, being all regarded as bad point as the point realizing phase place focusing pixel, do not participate in imaging, and in order to ensure the accuracy of focusing, must have the pixel of enough ratios for phase place focus function, this measure can having a strong impact on the clear effect of imaging;
Secondly, if the compensation of these bad points will be completed, supporting platform compensating bad point algorithm and transducer compensating bad point algorithm must be had, and start this algorithm and can increase considerably overall power, this measure can make cell-phone heating serious, and power consumption is accelerated, and affects Consumer's Experience widely.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of camera module and the electronic installation that can ensure image focusing definition and raising Consumer's Experience.
For achieving the above object, the invention provides a kind of camera module, wherein, described camera module comprises housing, camera lens, spectroscope, completely reflecting mirror, imageing sensor and focusing transducer, described housing comprises receiving space, described camera lens is positioned at one end of described receiving space and closes described receiving space, described spectroscope is fixed in described receiving space, described spectroscope and described camera lens are coaxially oppositely arranged, in order to the light via described camera lens incidence is divided into the first light and the second light, described completely reflecting mirror is fixed in described receiving space, and be positioned at described spectroscopical side, described completely reflecting mirror is in order to receive and to reflect described second light, described imageing sensor is fixed in described receiving space, described imageing sensor is in order to receive described first light and the image information obtained in described first light and part luma information, described focusing transducer is fixed in described receiving space, and be positioned at the side of described imageing sensor, described focusing transducer is in order to receive the second light reflected via described completely reflecting mirror, and the focusing information obtained in described second light.
Wherein, described imageing sensor is positioned at below described spectroscope, and described focusing transducer is positioned at below described completely reflecting mirror, and described imageing sensor is color image sensor, and described focusing transducer is phase-detection focusing transducer.
Wherein, described camera module also comprises image processor, described image processor is connected with described imageing sensor and sensor electrical of focusing, and described image processor carries out process and imaging in order to the focusing information that image information, part luma information and the described focusing sensor passes passed over by described imageing sensor is come.
Wherein, described camera module also comprises a filter, and described filter is fixed in described receiving space, and described filter is positioned at below described spectroscope and described completely reflecting mirror, in order to the unnecessary light of filtering through described spectroscope and described completely reflecting mirror.
Wherein, described camera lens comprises driving mechanism and lens, and described lens are positioned at described opening part, and the light of described open outer side is transmitted through described spectroscope through described lens, and described driving mechanism drives described lens to move, to regulate the focal position of described lens.
Wherein, described CD-ROM drive motor is voice coil motor, mid-motor or closed loop motor.
Wherein, described lens comprise the first convex lens and the second convex lens that stack gradually, described first convex lens and described second convex lens light described in transmission successively.
Wherein, described camera module also comprises flexible PCB, and described flexible PCB is positioned at described enclosure interior, and described flexible PCB is connected with described imageing sensor and sensor electrical of focusing.
Wherein, described imageing sensor and focus the effective coverage geometric center of transducer and the center superposition of described camera lens, and the effective coverage geometric center of described imageing sensor and described focusing transducer is equal to the shortest active path of optics of described optical center.
Correspondingly, present invention also offers a kind of electronic installation, described electronic installation comprises body, display screen, mainboard, the control element being arranged at mainboard and above-mentioned camera module, described camera module, display screen and mainboard are all fixed on described body, described camera module and described display screen are all electrically connected described control element, described control element controls described camera module and takes pictures, to obtain the image information of described camera module and to control described display screen and show described image information.
Camera module provided by the invention, by arranging spectroscope below camera lens, the light via camera lens incidence is divided into the first light and the second light, then completely reflecting mirror is set on spectroscopical side, second light is reflected by completely reflecting mirror, imageing sensor and focusing transducer are set, imageing sensor can receive the first light, and obtain image information and the part luma information of the first light, focusing transducer can receive the second light, to obtain the focusing information in the second light.By imageing sensor and focusing transducer division of labor effect, thus can image procossing be realized and carry out rapid focus, instead of existing employing transducer carry out image procossing and carry out the design of focusing, the consistency of focusing can either be ensured, can avoid again adopt single-sensor and occur not fogging clear, power consumption and be unfavorable for the problem of Consumer's Experience, improves image taking effect, and then improves Consumer's Experience.
Accompanying drawing explanation
For more clearly setting forth structural feature of the present invention and effect, be described in detail below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is the structural representation of the camera module that the embodiment of the present invention provides.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Refer to Fig. 1, the invention provides a kind of electronic installation, described electronic installation comprises body (not identifying in figure), display screen (not identifying in figure), mainboard (not identifying in figure), is arranged at control element on described mainboard and camera module 100, and described camera module 100, display screen and described mainboard are all located on described body.Described camera module 100 and described display screen are all electrically connected described control element, and described control element controls described camera module 100 and takes pictures, to obtain the image information of described camera module 100 and to control described display screen and show described image information.
Described electronic installation 100 can be include but not limited to the electronic equipments such as mobile phone, personal digital assistant (PersonalDigitalAssistant, PDA), panel computer, camera.In the present embodiment, be described for mobile phone for described electronic installation 100.
Described camera module 100 comprises housing 10, camera lens 20, spectroscope 30, completely reflecting mirror 40, imageing sensor 50 and focusing transducer 60, and described housing 10 comprises receiving space 11.Described camera lens 20 is positioned at one end of described receiving space 11 and closes described receiving space 11.Described spectroscope 30 is fixed in described receiving space 11, and described spectroscope 30 is coaxially oppositely arranged, in order to the light L1 via the incidence of described camera lens 20 is divided into the first light L2 and the second light L3 with described camera lens 20.Described completely reflecting mirror 40 is fixed in described receiving space 11, and is positioned at the side of described spectroscope 30, and described completely reflecting mirror 40 is in order to receive and to reflect described second light L3.Described imageing sensor 50 is fixed in described receiving space 11, in order to receive described first light L2, and the image information obtained in described first light L2 and part luma information.Described focusing transducer 60 is fixed in described receiving space 11, and described focusing transducer 60 in order to receive the described second light L3 reflected via described completely reflecting mirror 40, and obtains the focusing information in described second light L3.
Camera module 100 provided by the invention is by arranging described imageing sensor 50 and focusing transducer 60, then described spectroscope 30 is set the described light L1 via the incidence of described camera lens 20 is divided into described first light L2 and the second light L3, and a completely reflecting mirror 40 is set in the side of described spectroscope 30, in order to reflect described second light L3, then image information in described first light L2 and part luma information is received by described imageing sensor 50, described focusing transducer 60 receives the described second light L3 via described completely reflecting mirror 40 reflection and obtains focusing information, shared out the work and help one another by described imageing sensor 50 and focusing transducer 60, thus realize image and focusing, instead of the problem that existing adopts transducer to carry out image focusing and the image definition that causes is not high, thus improve image taking effect, improve Consumer's Experience.
Specifically, described housing 10 can be made up of plastic parts.Described housing 10 can be rectangular or cylindrical etc.Preferably, described housing 10 comprises base plate 101 and encloses the light shield 102 on described base plate 101 periphery.Form described receiving space 11 between described light shield 102 and described base plate 101, described receiving space 11 comprises an opening 111, and described opening 111 is offered towards the direction deviating from described base plate 101.As shown in the figure, the opening direction of described opening 111 is arranged towards direction straight up, thus the light of described opening 111 outside can be convenient to throw to described camera lens 20.In other embodiments, described housing 10 can also be made up of lower cover and cover plate, is then opened on described cover plate by described opening 111.
Described camera lens 20 utilizes lens or compound lens to focus on scenery, thus realizes described light L1 to be projected in described receiving space 11, thus makes described imageing sensor 50 and described focusing transducer 60 clearly can identify scene image.
In the present embodiment, described camera lens 20 comprises driving mechanism 21 and lens 22, and described lens 22 are positioned at described opening 111 place, and closes described opening 111.Light outside described opening 111 is transmitted through on described spectroscope 30 via described lens 22, and described driving mechanism 21 drives described lens 22 to move, to regulate the focal position of described lens 22.Particularly, described driving mechanism 21 is voice coil motor, mid-motor or closed loop motor.Described driving mechanism 21 can be located at all sides of described lens 22, below or other positions, to realize the effect driving the movement of described lens 22.Described lens 22 comprise the first convex lens 221 and the second convex lens 222 stacked gradually, described first convex lens 221 and described second convex lens 222 light L1 described in transmission successively.Described camera lens 20 also comprises sleeve 223, described first convex lens 221 and described second convex lens 222 are fixed on the two ends of sleeve 223 successively, the lateral wall of described sleeve 223 is bolted in described driving mechanism 21, described driving mechanism 21 drives described sleeve 223 to rotate, namely realize described sleeve 223 to move back and forth along the opening direction of described receiving space 11, thus drive described first convex lens 221 and described second convex lens 222 to move back and forth along the opening direction of described receiving space 11, and then drive described first convex lens 221 and described second convex lens 222 near or away from scenery, thus the focal position realizing described lens 22 regulates.In other embodiments, described driving mechanism 21 can also be Electromagnetic Drive, and described lens 22 can also be the compound lenss comprising convex lens and concavees lens.
Described spectroscope 30 is coaxially oppositely arranged with described camera lens 20.In the present embodiment, described spectroscope 30 is half-reflecting half mirror, thus realizes described light L1 to be divided into described first light L2 and described second light L3.Particularly, described spectroscope 30 can adopt the compound mode of 70% transmission and 30% reflection, thus realize can either transmitted ray, is capable of reflecting light again the effect of line.Be understandable that, in other embodiments, described spectroscope 30 also can adjust the compound mode of transmission and reflection according to actual service condition.
Further, described spectroscope 30 is a right angle Tp, and described spectroscope 30 comprises a right-angle surface 31 and light splitting surface 32, forms one 45 ° of angles, as shown in the figure between described light splitting surface 32 and described right-angle surface 31.Described light L1 is projected on described light splitting surface 32 via described camera lens 20, described first light L2 and the second light L3 is divided at described light splitting surface 32, described first light L2 is directly projected on described imageing sensor 50 through described right-angle surface 31, and described second light L3 directly reflexes on described completely reflecting mirror 40 through described light splitting surface 32.
In the present embodiment, described completely reflecting mirror 40 is a right angle Tp, described completely reflecting mirror 40 comprises a fully reflecting surface 41, described fully reflecting surface 41 is arranged towards described light splitting surface 32, thus described second light L3 can be realized reflex on described fully reflecting surface 41 via described light splitting surface 32, then by described second light L3 via the total reflection of described fully reflecting surface 41 on described focusing transducer 60 so that described focusing transducer 60 obtains the focusing information in described second light L3.
In the present embodiment, described imageing sensor 50 is positioned at below described spectroscope 30.Particularly, described imageing sensor 50 can be positioned at the below of described right-angle surface 31, and described imageing sensor 50 can be fixed on described base plate 101, and extended along the length direction of described base plate 101, that is, described imageing sensor 50 is arranged in the horizontal direction.Described imageing sensor 50 can receive the described first light L2 via the transmission of described right-angle surface 31, and then the image information that can obtain in described first light L2 and part luma information.Preferably, described imageing sensor 50 is color image sensor, thus can be convenient to follow-up imaging.
In the present embodiment, described focusing transducer 60 is positioned at the side of described imageing sensor 50, described focusing transducer 60 is PDAF (PhaseDetectionAuto-Focus phase-detection auto-focusing) transducer, and described focusing transducer 60 is positioned at the below of described completely reflecting mirror 40.Particularly, described focusing transducer 60 is positioned at the below of described fully reflecting surface 41, described focusing transducer 60 described base plate 101 of can fitting is arranged, and described focusing transducer 60 extends along the length direction of described base plate 101, namely, described focusing transducer 60 is arranged in the horizontal direction, and described focusing transducer 60 and described imageing sensor 50 are oppositely arranged.Described focusing transducer 60 can receive the described second light L3 reflected via described fully reflecting surface 41, and then can obtain the phase information in described second light L3, thus can be convenient to follow-up focusing.
Further, the effective coverage geometric center of described imageing sensor 50 and described focusing transducer 60 and the optical imagery circle center superposition of described camera lens 20, and the effective coverage geometric center of described imageing sensor 50 and described focusing transducer 60 is equal to the shortest active path of optics at described camera lens 20 center.In the present embodiment, described imageing sensor 50 surface has multiple imaging point, described focusing transducer 60 surface has multiple effective phase place focusing pixel, the center of multiple described imaging point and the center of multiple described effective phase place focusing pixel form described effective coverage geometric center respectively, described camera lens 20 comprises optical axis (not identifying in figure), described optical axis overlaps with the effective coverage geometric center of described imageing sensor 50 and transducer 60 of focusing, to ensure the shooting evenness of described camera module 100.In addition, the effective coverage geometric center of described imageing sensor 50 and described focusing transducer 60 is equal to the shortest active path of optics at described camera lens 20 center, namely described second light L2 is equal to the distance of the receiving plane of described focusing transducer 60 with described 3rd light L3 to the distance of the receiving plane of described imageing sensor 50, thus can ensure that described imageing sensor 50 is consistent with the focal length of described focusing transducer 60, thus ensure rapid focus effect.
When using described camera module 100 to take pictures, described focusing transducer 60 can detect the phase difference to described second light L3 in real time, the departure judging focus is carried out according to described phase information, thus described departure is transferred on the described control element on described mainboard, make described control element receive described departure and control described driving mechanism 21 to drive described lens 22 to move to focusing position to complete focusing, and control described image processor and take pictures, thus obtain image information that imageing sensor 50 on described image processor transmits and control described display screen and show described image information, thus reach imaging effect.Image information is obtained and described focusing transducer 60 obtains focusing information by described imageing sensor 50, thus the acquisition of image and focusing information can be completed simultaneously, thus existing employing transducer can be solved carry out focusing and the imaging caused is unintelligible and increase the problem of terminal energy consumption, thus the more rapid and convenient that makes to focus, and imaging effect is better.
Further, described camera module 100 also comprises filter 70, and described filter 70 is fixed in described receiving space 11.In the present embodiment, described filter 70 can be smalt, and described filter 70 is square laminated structure.Described filter 70 is positioned at below described spectroscope 30 and described completely reflecting mirror 40, in order to the unnecessary light of spectroscope described in filtering 30 and described completely reflecting mirror 40.Particularly, described filter 70 between described spectroscope 30, described imageing sensor 50 and described completely reflecting mirror 40, between described focusing transducer 60, thus can the first light L2 described in filtering and the longer light of the second light L3 medium wavelength, thus the image information that described imageing sensor 50 can be made to identify is softer, and the focusing information that described focusing transducer 60 identifies is more accurate, and then make described camera module 100 can shoot the softer photo of image information, and then improve the effect of taking pictures of described camera module 100.
Further, described camera module 100 also comprises image processor (not identifying in figure), described imageing sensor is all electrically connected with described imageing sensor 50 and described focusing transducer 60, and described image processor carries out process and imaging in order to the phase difference that image information, part luma information and the described focusing transducer 60 passed over by described imageing sensor 50 passes over.In the present embodiment, described image processor can be located in described housing 10, also can be located on described body.Preferably, described image processor can be the chip be located on described mainboard.
Further, described camera module 100 also comprises flexible PCB (not identifying in figure), and described flexible PCB is electrically connected on described imageing sensor 50 and described focusing transducer 60.And preferably, described flexible PCB is electrically connected with described image processor, described flexible PCB realizes the transmission of the digital information of described imageing sensor 50 and the digital information of described focusing transducer 60, and described flexible PCB can be located in described housing 10 or be located on described body, described flexible PCB is by connecting line or connector and described imageing sensor 50, focusing transducer 60 and the electrical connection of described image processor, thus realize the detachability of described camera module 100, and increase the suitability of described camera module 100, conveniently the maintenance of described camera module 100 is changed.
Camera module provided by the invention, by arranging spectroscope below camera lens, the light via camera lens incidence is divided into the first light and the second light, then completely reflecting mirror is set on spectroscopical side, second light is reflected by completely reflecting mirror, imageing sensor and focusing transducer are set, imageing sensor can receive the first light, and obtain image information and the part luma information of the first light, focusing transducer can receive the second light, to obtain the focusing information in the second light.By imageing sensor and focusing transducer division of labor effect, thus can image procossing be realized and carry out rapid focus, instead of existing employing transducer carry out image procossing and carry out the design of focusing, the consistency of focusing can either be ensured, can avoid again adopt single-sensor and occur not fogging clear, power consumption and be unfavorable for the problem of Consumer's Experience, improves image taking effect, and then improves Consumer's Experience.
The above is the preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a camera module, it is characterized in that, described camera module comprises housing, camera lens, spectroscope, completely reflecting mirror, imageing sensor and focusing transducer, described housing comprises receiving space, described camera lens is positioned at one end of described receiving space and closes described receiving space, described spectroscope is fixed in described receiving space, described spectroscope and described camera lens are coaxially oppositely arranged, in order to the light via described camera lens incidence is divided into the first light and the second light, described completely reflecting mirror is fixed in described receiving space, and be positioned at described spectroscopical side, described completely reflecting mirror is in order to receive and to reflect described second light, described imageing sensor is fixed in described receiving space, described imageing sensor is in order to receive described first light and the image information obtained in described first light and part luma information, described focusing transducer is fixed in described receiving space, and be positioned at the side of described imageing sensor, described focusing transducer is in order to receive the second light reflected via described completely reflecting mirror, and the focusing information obtained in described second light.
2. camera module according to claim 1, it is characterized in that, described imageing sensor is positioned at below described spectroscope, and described focusing transducer is positioned at below described completely reflecting mirror, described imageing sensor is color image sensor, and described focusing transducer is phase-detection focusing transducer.
3. camera module according to claim 1, it is characterized in that, described camera module also comprises image processor, described image processor is connected with described imageing sensor and sensor electrical of focusing, and described image processor carries out process and imaging in order to the focusing information that image information, part luma information and the described focusing sensor passes passed over by described imageing sensor is come.
4. camera module according to claim 1, it is characterized in that, described camera module also comprises a filter, described filter is fixed in described receiving space, described filter is positioned at below described spectroscope and described completely reflecting mirror, in order to the unnecessary light of filtering through described spectroscope and described completely reflecting mirror.
5. camera module according to claim 1, it is characterized in that, described camera lens comprises driving mechanism and lens, described lens are positioned at described opening part, the light of described open outer side is transmitted through described spectroscope through described lens, described driving mechanism drives described lens to move, to regulate the focal position of described lens.
6. camera module according to claim 5, is characterized in that, described CD-ROM drive motor is voice coil motor, mid-motor or closed loop motor.
7. camera module according to claim 5, is characterized in that, described lens comprise the first convex lens and the second convex lens that stack gradually, described first convex lens and described second convex lens light described in transmission successively.
8. camera module according to claim 1, is characterized in that, described camera module also comprises flexible PCB, and described flexible PCB is positioned at described enclosure interior, and described flexible PCB is connected with described imageing sensor and sensor electrical of focusing.
9. camera module according to claim 1, it is characterized in that, described imageing sensor and focus the effective coverage geometric center of transducer and the center superposition of described camera lens, and the effective coverage geometric center of described imageing sensor and described focusing transducer is equal to the shortest active path of optics of described optical center.
10. an electronic installation, it is characterized in that, described electronic installation comprises body, display screen, mainboard, the control element being arranged at mainboard and camera module as claimed in any one of claims 1 to 9 wherein, described camera module, display screen and mainboard are all fixed on described body, described camera module and described display screen are all electrically connected described control element, described control element controls described camera module and takes pictures, to obtain the image information of described camera module and to control described display screen and show described image information.
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| CN201510520605.8A CN105163011A (en) | 2015-08-21 | 2015-08-21 | Image pick-up module and electronic device |
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| CN109862261A (en) * | 2018-12-29 | 2019-06-07 | 努比亚技术有限公司 | Filming apparatus, shooting processing method, terminal and computer readable storage medium |
| CN110365825A (en) * | 2019-07-23 | 2019-10-22 | Oppo广东移动通信有限公司 | A kind of CCD camera assembly, video camera and terminal |
| CN110737102A (en) * | 2018-07-19 | 2020-01-31 | 广州印芯半导体技术有限公司 | Structured light projection device |
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| WO2022021931A1 (en) * | 2020-07-31 | 2022-02-03 | 华为技术有限公司 | Camera module and terminal device |
| WO2022064659A1 (en) * | 2020-09-25 | 2022-03-31 | オリンパス株式会社 | Autofocus system, endoscope system, and control method |
| CN113067981A (en) * | 2021-03-25 | 2021-07-02 | 浙江大华技术股份有限公司 | Focal length adjusting method of camera and camera |
| WO2022268216A1 (en) * | 2021-06-24 | 2022-12-29 | 维沃移动通信有限公司 | Pixel structure, image sensor, control method and apparatus, and electronic device |
| CN115314624A (en) * | 2022-08-19 | 2022-11-08 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN117492192A (en) * | 2023-12-04 | 2024-02-02 | 宜宾市极米光电有限公司 | Projection lens |
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